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1

IIT-JEE 1983

The rational number, which equals the number $$2\overline {357}$$ with recurring decimal is
A
$${{2355} \over {1001}}$$
B
$${{2379} \over {997}}$$
C
$${{2355} \over {999}}$$
D
none of these
2

IIT-JEE 1982

If $$x,\,y$$ and $$z$$ are $$pth$$, $$qth$$ and $$rth$$ terms respectively of an A.P. and also of a G.P., then $${x^{y - z}}\,{y^{z - x}}\,{z^{x - y}}$$ is equal to :
A
$$xyz$$
B
$$0$$
C
$$1$$
D
None of these
3

IIT-JEE 1982

The third term of a geometric progression is 4. The product of the first five terms is
A
43
B
45
C
44
D
none of these

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